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220239 - 44 Williams Road, KIN KIN - SSE - TE222036 - 44 Williams Road, Kin Kin QLD 4571 (1) (1)
Attached to the e-mail MCU22/0168 - Information Response - 44 Williams Road Kin Kin.
E [email protected]
P 0400 301 364
W taylorenviro.com.au
M PO Box 4291, Springfield QLD 4300
ABN 37 147 807 420
QBCC Licence Number 15055672
Proudly Australian Owned
Site and Soil Evaluation
On-Site Wastewater and Effluent Disposal System Design
Primary Dwelling & Secondary Dwelling
44 Williams Road,
Kin Kin QLD 4571
Report # TE222036
Issue A
Date 14 June 2022
OFFICES IN BRISBANE, TOOWOOMBA, GOLD COAST, HERVEY BAY. SERVICING WIDER QUEENSLAND
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Page 2
1 Introduction
1.1 Background
Taylor Environmental (Australia) Pty Ltd was engaged to design an on-site wastewater treatment and
effluent disposal system at 44 Williams Road, Kin Kin QLD 4571.
This property is not serviced by a municipal sewer network and requires all wastewater to be managed
on site.
1.2 Proposal
It is proposed to:
• Install an Advanced Enviro Septic (AES) system for the primary dwelling
• Install an Advanced Enviro Septic (AES) system for the secondary dwelling
1.3 Scope of Works
The scope of works for this Site and Soil Evaluation are outlined below:
• Undertake a desktop study of the property, including a review of the development, sensitive
environments, geology and slope
• Investigate the receiving soil
• Determine a suitable location and method of effluent disposal
• Prepare plans for the wastewater management system for Council consideration
1.4 Legislation and Standards
This report has been completed in accordance with the relevant legislative requirements:
• Plumbing and Drainage Act
• Plumbing and Drainage Regulation
• Queensland Plumbing and Wastewater Code
• AS/NZS 1547:2012 On-site Domestic Wastewater Management
• Plumbing Code of Australia (PCA)
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 2 of 19
Page 3
2 Site Assessment
Details of the subject property are presented in Table 1, below.
Table 1: Property Details
Feature Details
Property Address 44 Williams Road, Kin Kin QLD 4571
Real Property Description Lot 3 on SP127443
Local Authority Noosa Shire Council
Property size 282,448 m2
Dwellings/structures Serviced shed near Williams Road
Water Supply Rainwater
Easements n/a
Vegetation Pasture grasses in disposal areas
Slope 16 - 22%
Slope configuration Linear planar / Linear divergent
Several intermittent water ways and dams on property.
Water bodies
None near building areas
Environmental area MSES on parts of property. None near building areas
Figure 1 shows the building location on the top half of the property.
Secondary
Dwelling
Primary
Dwelling
Existing Shed
MSES
Figure 1: Site Layout
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 3 of 19
Page 4
3 Primary Dwelling
3.1 Soil Investigation
A geotechnical investigation was undertaken by Geotechnical Soils on 28 October 2021. The soil profile
and design characteristics for the primary dwelling effluent disposal area are presented in Table 2.
Table 2: Soil Type
depth BH4 depth BH5
Silty clay (CL), low plasticity Silty clay (CL), low plasticity
300 250
Cat 4 – moderately Cat 4 – moderately
Silty clay (CL), medium plasticity Silty clay (CL), medium plasticity
750 750
Cat 5 – strongly Cat 5 – strongly
Silty clay (CL), low plasticity Sandy clay (CL), low plasticity
1150 1650
Cat 4 – moderately Cat 4 - moderately
Clayey sand (SC)
1500 2250 XWR
Cat 3 - massive
Design Characteristics
Texture Clay Loam / Light Clay
Category 5
Indicative Permeability (Ksat) 0.12 – 0.5 m/day
Adopted Design Loading Rate (DLR) 10 mm/day
3.2 Wastewater System
Table 3 below presents the features of the AES system for the primary dwelling.
Table 3: Design Features
Feature Details
Septic tank capacity 3000 L (min)
Treatment plant Advanced Enviro Septic (AES)
Treatment System
Treatment plant approval 15/2019
Treatment level Advanced secondary
Water supply Rain water
Volume Allowance 120 L/person/day
Design Volume Number of bedrooms 3
Design population 5
Total Design Volume (Q) 600 L/day
Category 5
Soil Characteristics
Design Loading Rate (DLR) 10 mm/day
Width = 2.33m
Length = Q / (DLR x Width)
Required disposal area = 600 / (10 x 2.33)
Disposal Area = 25.8m
Area = 60 m2
Install as 2 [email protected] x 2.33m each
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 4 of 19
Page 5
4 Secondary Dwelling
4.1 Soil Investigation
The soil profile and design characteristics for the secondary dwelling effluent disposal area are
presented in Table 4.
Table 4: Soil Type
depth BH9 depth BH10
Silty clay (CL), low plasticity Clayey sand (SC)
200 200
Cat 4 – moderately Cat 3 - massive
Silty clay (CL), medium plasticity Silty clay (CL), low-medium plasticity
700 500
Cat 5 – moderately Cat 5 – strongly
Silty clay (CL), low-medium plasticity Clayey sand (SC)
1500 1500
Cat 5 – strongly Cat 3 - massive
Silty clay (CL), low plasticity Clayey sand (SC)
2000 2500
Cat 4 – moderately Cat 3 - massive
Design Characteristics
Texture Clay Loam / Light Clay
Category 5
Indicative Permeability (Ksat) 0.06 – 0.12 m/day
Adopted Design Loading Rate (DLR) 10 mm/day
4.2 Wastewater System
A shed near the new second dwelling has unapproved plumbing, with a septic tank and trenches. The
plumbing is to be abandoned and capped permanently so that it is no longer useable. The trenches
are to be abandoned. The concrete septic tank is in good condition and is to be retained for use by
the dwelling. Table 5 below presents the features of the AES system for the secondary dwelling.
Table 5: Design Features
Feature Details
Septic tank capacity 3900 L (existing)
Treatment plant Advanced Enviro Septic (AES)
Treatment System
Treatment plant approval 15/2019
Treatment level Advanced secondary
Water supply Rain water
Volume Allowance 120 L/person/day
Design Volume Number of bedrooms 2
Design population 3
Total Design Volume (Q) 360 L/day
Category 5
Soil Characteristics
Design Loading Rate (DLR) 10 mm/day
Width = 2.61m
Length = Q / (DLR x Width)
Required disposal area = 360 / (10 x 2.61)
Disposal Area = 13.8m
Area = 36 m2
Install as 2 [email protected] x 2.61m each
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 5 of 19
Page 6
The design of the AES system is presented in Appendix A.
The Advanced Enviro-Septic Approved Design Calculator is presented in Appendix B.
The AES Treatment Plant Approval is presented in Appendix C.
5 Effluent Quality
Table 4 below presents the effluent standards produced by approved wastewater treatment systems
with subsurface disposal.
Table 6: Effluent Quality
Parameter Secondary Advanced Secondary
BOD 90% < 20 mg/L; 100% < 30 mg/L 90% < 10 mg/L; 100% < 20 mg/L
TSS 90% < 30 mg/L; 100% < 45 mg/L 90% < 10 mg/L; 100% < 20 mg/L
6 Setback Distances
The Queensland Plumbing and Wastewater Code V1:2019 Appendix Part 2, Table T2 and Table T5,
outlines minimum setback separation distances required for subsurface land application areas. These
distances are presented in Table 5.
Table 7: Separation Distances
Separation Distance
Feature
Up Slope Down Slope Level
Property boundaries, pedestrian paths, walkways,
2m 4m 2m
recreation areas, retaining walls, footings
Inground swimming pool, Inground potable water tank 6m 6m 6m
Separation Distance
Feature
Adv. Sec. Secondary Primary
Top of bank of watercourse / waterbody, Bore or dam,
10 m 30 m 50 m
Open stormwater drainage channel or drain
Permanent water table (vertical) 0.3 m 0.6 m 1.2 m
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 6 of 19
Page 7
7 Maintenance
Property owners have a responsibility to ensure the onsite wastewater treatment and effluent
disposal system is maintained and serviced. The following servicing and precautions are to be
undertaken:
• Septic tanks to be checked annually and pumped out when 1/3 full of solids or once every 5
years, whichever is sooner
• Read and follow the Owner's Manual that is provided with the system
• Comply with local authority’s servicing requirements
• Do not manipulate the system so that it no longer complies with the Council issued permit or
the plans located in Appendix A of this document
• Maintain the land application area e.g. regularly mowed and ensure that there is no ponding
of effluent
• Vehicles, animals and general access to the land application area is to be generally restricted
with warning signs erected
• Use low sodium biodegradable soaps and detergents as per the label instructions and no
paints, solvents, chemicals, food scraps, fats, oils or any other solids to be disposed of “down
the drain”
• It is always good practice to minimise / stagger high wastewater generating activities such as
laundry over a full week
• On-site sewage systems are not designed to cope with the flow from garbage grinders
The design was completed by Chris Taylor (Director, Taylor Environmental (Australia) Pty Ltd, QBCC
Licence Number 150 556 72).
Chris Taylor MEnvMan, BAppSc(Chem), ADCivEng Cert IV DWM003
Director | Taylor Environmental (Australia) Pty Ltd
14 June 2022
Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571
Taylor Environmental (Australia) Pty Ltd Page 7 of 19
Page 8
Appendix A Design Drawings Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571 Taylor Environmental (Australia) Pty Ltd Page 8 of 19
Page 9
PRIMARY DWELLING
SECONDARY DWELLING
RY
WILLIAMS
NDA
ROAD REVISIONS
BOU
9
# DATE SUBJECT AUTHORISED
TY
A 14/06/2022 REVISION A C. TAYLOR
PER
PRIMARY DWELLING
PRO
MSES
ENVIRONMENTAL PROPER
AREA TY BOU
NDARY
TAYLOR ENVIRONMENTAL
35000
3000L (min) ALL-WASTE SEPTIC TANK
LOCATION TO BE CONFIRMED DURING INSTALLATION
FULL SITE PLAN
1:15,000 @ A3 ∅100 DWV DRAINAGE TO SEPTIC TANK
MIN GRADE 1:60
22%
QBCC LICENCE NUMBER 150 556 72
S ABN NUMBER 95268308955
S S
AES BEDS S
Phone: +61 400 301 364
· 2x [12.9 x 2.33m] = 60m² 3BR
PRIM Email: [email protected]
· TPA 15-2019 ARY 3 Web: www.taylorenviro.com.au
DWE
12900
· ALIGN TO NATURAL SLOPE
· STORMWATER TO BE DIVERTED AROUND BEDS 10000 LLIN
2 G
5
1
WASTE WATER TREATMENT &
CK
TRA
EFFLUENT DISPOSAL SYSTEM
DIRT
6660
AUTHORISED FOR ISSUE DATE
MSES
4 130 14/06/2022
GENERAL NOTES:
- LOCATION OF SEPTIC TANK, ORG, VENT PIPE AND OTHER 129
WASTE PIPES TO BE DETERMINED BY PLUMBER 128
STREET ADDRESS
- REFER TO COMPLIANCE PERMIT FOR CONDITIONS OF COUNCIL 127
APPROVAL 126 44 WILLIAMS RD, KIN KIN 4571
125
REDUCED LEVELS: FLAT BUILDING PLATFORM LOT & PLAN
- AES FSL = 128.000 3 SP127443
- INVERT OF SEPTIC TANK OUTLET = 128.075
- INVERT OF SEPTIC TANK INLET = 128.125 COUNCIL
- TOP OF SEPTIC TANK = 128.550
- 75mm MIN DIFFERENCE IN LEVEL REQUIRED BETWEEN BOTTOM OF
NOOSA SHIRE
SEPTIC TANK OUTLET AND FINAL SURFACE AREA OF AES BED NAME OF CLIENT
- LEVELS TO BE CHECKED/CONFIRMED BY INSTALLING PLUMBER
COTTERILL
DRAINAGE:
- ∅100 uPVC DWV (MIN GRADE 1:60)
DESIGNER
C. TAYLOR
SEPTIC TANK:
- TO BE INSTALLED AS PER MANUFACTURERS SPECIFICATION DRAWN
- SWIVEL KNUCKLE AND EXPANSION JOINTS TO BE INSTALLED ON M. MAHONY
INLET AND OUTLET PIPES
DRAWING DETAILS
AES SYSTEM:
- TO BE INSTALLED AS PER MANUFACTURERS SPECIFICATION AND PRIMARY DWELLING SITE PLAN
BY A SUPPLIER APPROVED PERSON JOB NUMBER
- DEEP RIP BASE OF BED AND SPREAD GYPSUM AT 1kg/m2
- 150mm MIN TOPSOIL OVER AES SAND BED TE222036
- GRASS/TURF OVER BED
- NO TREES WITHIN 2m OF BED SITE PLAN - PRIMARY SCALE REVISION DWG #
1:400 @ A3 1:400 A SL1
Page 10
GENERAL NOTES
1. THE SYSTEM INSTALLER IS RESPONSIBLE TO ESTABLISH THE SOIL CHARACTERISTICS PRIMARY DWELLING
LOCATION, LEVELS AND DEPTHS OF ALL EXISTING SERVICES
ON-SITE PRIOR TO COMMENCING ANY WORKS 0 - 1650 SILTY CLAY (CL)
SOIL
2. LOCATIONS AND SETOUT DIMENSIONS SHOWN ARE APPROXIMATE
ONLY AND ARE TO BE CONFIRMED ON SITE.
1650 - 2250 SANDY CLAY (CL) REVISIONS
3. ACCESS AND LAY DOWN AREAS ARE TO BE CONFIRMED BY THE STRUCTURE MODERATE / STRONG # DATE SUBJECT AUTHORISED
SYSTEM INSTALLER A 14/06/2022 REVISION A C. TAYLOR
4. EXISTING BUILDINGS AND EXTERNAL STRUCTURES SHOWN ON THESE DISTRIBUTION BOX
SOIL CATEGORY 4/5
DRAWINGS ARE OBTAINED FROM THE AVAILABLE INFORMATION AND
MAY NOT BE COMPLETE AND ACCURATE PERMEABILITY 0.12 - 0.5 m/DAY
5. ALL DIMENSIONS ARE IN MM U.N.O
6. NO TREES TO REMAIN WITHIN 2.0m OF AES FOOTPRINT DESIGN LOADING RATE 10 mm/DAY OFFSET ADAPTER COUPLINGS STRAIGHT RAISED CONNECTOR LOW VENT
7. PLUMBING AND DRAINAGE TO QLD PLUMBING & WASTEWATER ACT,
AS / NZS 3500 DESIGN VOLUME
8. ALL PIPE WORK TO AS / NZS 4020
900
9. ALL TANKS TO BE INSTALLED AND ANCHORED IN COMPLIANCE WITH WATER SUPPLY RAIN WATER
THE MANUFACTURERS SPECIFICATIONS
10. FLEXIBLE JOINTS ON ALL INSTALLED TANKS (AS / NZS 3500)
2330
VOLUME ALLOWANCE 120 L/P/DAY
11. THERE SHALL BE NO CROSS CONNECTION BETWEEN ANY
1430
WASTEWATER / EFFLUENT PIPEWORK AND ANY POTABLE WATER NUMBER OF BEDROOMS 3 INSPECTION POINT INSPECTION POINT
SUPPLY PIPEWORK
12. MINIMUM DISTANCE BETWEEN TANKS AND BUILDINGS TO BE
TAYLOR ENVIRONMENTAL
DESIGN POPULATION 5
MAINTAINED (AS/NZS 3500)
13. USE ONLY A LICENSED DRAINER THAT HAS BEEN ACCREDITED BY TOTAL DESIGN VOLUME 600 L/DAY
THE AES SYSTEM SUPPLIER. THE SUPPLIER WILL NOT PROVIDE THE
AES PIPES UNLESS THE LICENSED DRAINER HAS BEEN TRAINED AND
2000
6660
DISPOSAL AREA ∅100 uPVC DWV
ACCREDITED
14. AES PIPES MUST BE INSTALLED AS PER AES INSTALLATION DISPOSAL AREA REQUIRED A = Q/DLR = 60.0 m²
INSTRUCTIONS.
15. FINAL LOCATION OF AES BEDS AND ASSOCIATED PIPE WORK CAN INSTALL AS 2x [12.6 x 2.33] = 60 m²
ONLY BE ALTERED ON SITE TO MEET THE SITE CONDITIONS AFTER
900
APPROVAL FROM TAYLOR ENVIRONMENTAL (AUSTRALIA) PTY LTD TYPE OF FACILITY ADVANCED ENVIRO SEPTIC
16. GRADE ALL BATTERS EVENLY AT 1 IN 5, UNLESS NOTED
OTHERWISE
2330
TREATMENT PLANT APPROVAL 15 / 2019
17. ANY SOILS ENCOUNTERED WHICH SHOW EVIDENCE OF
1430
CONTAMINATION ARE TO BE STOCKPILED SEPARATELY. TREATMENT LEVEL ADVANCED SECONDARY
CONTAMINATED SOIL SHALL BE HANDLED IN ACCORDANCE WITH ALL
WORKPLACE HEALTH & SAFETY AND ENVIRONMENTAL REGULATIONS AES CALCULATOR OUTCOMES
18. IT IS THE INSTALLERS RESPONSIBILITY TO PROVIDE ACCURATE 'AS
CONSTRUCTED' DRAWINGS TO RELEVANT LOCAL AUTHORITY AND
NUMBER OF AES PIPE ROWS 2
INCUR ASSOCIATED COST 300 6000 300 6000 300
19. ALL DISTURBED AREAS TO BE RE-GRASSED AND RECTIFIED
20. EXISTING TOPSOIL IS TO BE RETAINED AND SET ASIDE
NUMBER OF AES PIPES/ROW 4.0
(WINDROWED) TO PREVENT DAMAGE FROM MACHINERY AND
12900
BUFFER CAPACITY 1738 L
REDISTRIBUTED ONCE INSTALLATION IS COMPLETE
21. AT LEAST A 5 TONNE MACHINE WITH POSI-TRACK SYSTEM IS
BILL OF QUANTITIES
QBCC LICENCE NUMBER 150 556 72
REQUIRED FOR EARTHWORKS TO ELIMINATE POTENTIAL TRACK ABN NUMBER 95268308955
INDENTATIONS INTO GROUND LEVEL
22. IT IS THE RESPONSIBILITY OF THE INSTALLER TO ENGAGE THE
AES PIPES 8
DESIGNER TO UNDERTAKE INSPECTIONS DURING INSTALLATION. Phone: +61 400 301 364
FAILURE TO DO SO WILL RESULT IN THE FORM 8 / COMMISSIONING COUPLINGS [AESC] 4 Email: [email protected]
CERTIFICATE NOT BEING ABLE TO BE COMPLETED
OFFSET ADAPTOR [AESO] 8 AES BED PLAN VIEW Web: www.taylorenviro.com.au
INSTALLATION
- IT IS THE INSTALLERS RESPONSIBILITY TO ENSURE THAT ALL OXYGEN DEMAND VENT [AESODV] 2
COMPONENTS COMPLY WITH THESE GUIDES UPON COMMISSIONING OF
THIS SYSTEM INSPECTION POINT BASE [AESIPB] 4
- ALL BURIED PIPE WORK IS TO BE IDENTIFIED WITH UNDERGROUND
MARKING TAPE PLACED ABOVE THE PIPE WORK CLEAN COURSE SAND 28 m² WASTE WATER TREATMENT &
- ALONG THE BOUNDARY OF THE LAND APPLICATION AREA THERE
AES FOOTPRINT
EFFLUENT DISPOSAL SYSTEM
SHALL BE AT LEAST 2 WARNING SIGNS CLEARLY VISIBLE TO
ADVISE THAT RECYCLED WATER IS USED (EACH SIGN SHALL
COMPLY WITH AS1319 AND HAVE THE WORDING RECYCLED WATER - LENGTH WIDTH AREA STORMWATER DIVERSION
AVOID CONTACT DO NOT DRINK) AUTHORISED FOR ISSUE DATE
AES SYSTEM 25.8 m 0.9 m 23.2 m²
MAINTENANCE GRASS
- SEPTIC TANKS TO BE CHECKED FOR SOLIDS BUILD UP ANNUALLY EXTENSION AREA 25.8 m 1.43 m 36.8 m² INSPECTION POINT 14/06/2022
150 MIN
- SEPTIC TANKS TO PUMPED OUT IF 31 FULL OF SOLIDS OR 5 YEARS LOW VENT
TOTAL 25.8 m 2.33 m 60.0 m²
(WHICHEVER IS SOONER) STREET ADDRESS
150 MIN
- LAND APPLICATION IS IMPORTANT AND IS TO BE REGULARLY 22% S INSPECTION POINT
1060 APPROX
MOWED AND ANIMALS AND VEHICLES EXCLUDED LOPE 44 WILLIAMS RD, KIN KIN 4571
APPROVED SAND
150 LOT & PLAN
300 300 BACK FILL 3 SP127443
750
COUNCIL
300
150
NOOSA SHIRE
∅100 LOW VENT WITH
150
MOSQUITO PROOF MESH 900 1430 NAME OF CLIENT
300 300
2330 COTTERILL
750
TURF ALL FINAL GRADES. NO DEEP ROOTED
ROTATE
PLANTS ON SYSTEM OR OVERFILL AREAS
DESIGNER
300
150
150
ROTATE UNTIL LEVEL WITH TOP RIP & SCARIFY 300mm C. TAYLOR
OF OFFSET ADAPTER
TOP VIEW APPLY GYPSUM 1kg/m² DRAWN
100 900 1430
50-100MM 2221 ° ELBOW 100MM ∅ S&D PIPE
LEVEL
GEOTEXTILE FIBER WRAP
2000 2330 M. MAHONY
LEVEL
RANDOMLY ORIENTATED DRAWING DETAILS
FIBER MAT
SLOPE
PRIMARY DWELLING DETAIL
AES PIPE
ADVANCED E-S PIPE SIDE VIEW OFFSET ADAPTERS
OFFSET ADAPTOR JOB NUMBER
ORIGINAL SOIL TE222036
APPROVED SAND
AES BED SECTION VIEW SCALE REVISION DWG #
STRAIGHT RAISED CONNECTION LOW VENT N/A A SL2
Page 11
185 SECOND DWELLING
SECONDARY DWELLING
WILLIAMS
ROAD REVISIONS
9
180 # DATE SUBJECT AUTHORISED
6
A 14/06/2022 REVISION A C. TAYLOR
PRIMARY DWELLING 2BR
SECONDARY
MSES
ENVIRONMENTAL DWELLING
AREA
7
175
TAYLOR ENVIRONMENTAL
S
S
S
∅100 DWV DRAINAGE
FROM DWELLING TO
S
SEPTIC TANK
S
MIN GRADE 1:60
WILLIAMS ROAD
S
170
S
FULL SITE PLAN
S
Y R
S
NDA
1:15,000 @ A3
S
BOU
53000 APPROX
TY
S
PER
UNAPPROVED PLUMBING IN SHED TO BE
S
PRO
ABANDONED. DISCONNECT DRAINAGE FROM
SEPTIC TANK AND CAP PERMANENTLY
S
S
QBCC LICENCE NUMBER 150 556 72
ABN NUMBER 95268308955
S
S
PR Phone: +61 400 301 364
OP Email: [email protected]
S
ER
TY Web: www.taylorenviro.com.au
S
BO
UN
DA
S
EXISTING RY
SERVICED SHED
S
WASTE WATER TREATMENT &
S
EFFLUENT DISPOSAL SYSTEM
S
EXISTING 3900L CONCRETE SEPTIC TANK.
S
RETAIN SEPTIC TANK FOR DWELLING.
DISCONNECT UNAPPROVED DRAINAGE FROM AUTHORISED FOR ISSUE DATE
S
SHED AND CAP.
14/06/2022
S
GENERAL NOTES:
- LOCATION OF ORG, VENT PIPE AND OTHER WASTE PIPES TO BE
DETERMINED BY PLUMBER STREET ADDRESS
- REFER TO COMPLIANCE PERMIT FOR CONDITIONS OF COUNCIL
0
00
APPROVAL 44 WILLIAMS RD, KIN KIN 4571
S
22
LOT & PLAN
S
REDUCED LEVELS:
- AES FSL = 174.500 3 SP127443
S
- INVERT OF SEPTIC TANK OUTLET = 174.575
CK
COUNCIL
TRA
- INVERT OF SEPTIC TANK INLET = 174.625
S
- TOP OF SEPTIC TANK = 175.050 ABANDON SEPTIC TRENCHES NOOSA SHIRE
DIRT
- 75mm MIN DIFFERENCE IN LEVEL REQUIRED BETWEEN BOTTOM OF
S
7220
SEPTIC TANK OUTLET AND FINAL SURFACE AREA OF AES BED 10 NAME OF CLIENT
- LEVELS TO BE CHECKED/CONFIRMED BY INSTALLING PLUMBER
S
16%
COTTERILL
DRAINAGE: MSES DESIGNER
- ∅100 uPVC DWV (MIN GRADE 1:60) 7000 9 C. TAYLOR
SEPTIC TANK: 6900 NEW AES BEDS FOR DWELLING
- SWIVEL KNUCKLE AND EXPANSION JOINTS TO BE INSTALLED ON DRAWN
INLET AND OUTLET PIPES · 2x [6.9 x 2.61m] = 36m²
· TPA 15-2019
M. MAHONY
AES SYSTEM: 8 · ALIGN TO NATURAL SLOPE AND CURVE AROUND HILL AS DRAWING DETAILS
- TO BE INSTALLED AS PER MANUFACTURERS SPECIFICATION AND REQUIRED
BY A SUPPLIER APPROVED PERSON SECOND DWELLING SITE PLAN
- DEEP RIP BASE OF BED AND SPREAD GYPSUM AT 1kg/m2 · STORMWATER TO BE DIVERTED AROUND BEDS
JOB NUMBER
- 150mm MIN TOPSOIL OVER AES SAND BED
- GRASS/TURF OVER BED TE222036
- NO TREES WITHIN 2m OF BED
SITE PLAN - SECONDARY SCALE REVISION DWG #
1:400 @ A3 1:400 A SL3
Page 12
GENERAL NOTES
1. THE SYSTEM INSTALLER IS RESPONSIBLE TO ESTABLISH THE SOIL CHARACTERISTICS SECOND DWELLING
LOCATION, LEVELS AND DEPTHS OF ALL EXISTING SERVICES
ON-SITE PRIOR TO COMMENCING ANY WORKS
SOIL 0 - 2000 SILTY CLAY (CL)
2. LOCATIONS AND SETOUT DIMENSIONS SHOWN ARE APPROXIMATE
ONLY AND ARE TO BE CONFIRMED ON SITE.
REVISIONS
DISTRIBUTION BOX STRAIGHT # DATE SUBJECT AUTHORISED
3. ACCESS AND LAY DOWN AREAS ARE TO BE CONFIRMED BY THE STRUCTURE MODERATE / STRONG LOW VENT
SYSTEM INSTALLER RAISED CONNECTOR
OFFSET ADAPTER A 14/06/2022 REVISION A C. TAYLOR
4. EXISTING BUILDINGS AND EXTERNAL STRUCTURES SHOWN ON THESE SOIL CATEGORY 4/5
DRAWINGS ARE OBTAINED FROM THE AVAILABLE INFORMATION AND
MAY NOT BE COMPLETE AND ACCURATE PERMEABILITY 0.06 - 0.12 m/DAY
5. ALL DIMENSIONS ARE IN MM U.N.O
900
6. NO TREES TO REMAIN WITHIN 2.0m OF AES FOOTPRINT DESIGN LOADING RATE 10 mm/DAY
7. PLUMBING AND DRAINAGE TO QLD PLUMBING & WASTEWATER ACT,
AS / NZS 3500 DESIGN VOLUME
8. ALL PIPE WORK TO AS / NZS 4020
INSPECTION POINT
2610
9. ALL TANKS TO BE INSTALLED AND ANCHORED IN COMPLIANCE WITH WATER SUPPLY RAIN WATER
THE MANUFACTURERS SPECIFICATIONS
10. FLEXIBLE JOINTS ON ALL INSTALLED TANKS (AS / NZS 3500) VOLUME ALLOWANCE 120 L/P/DAY
1710
11. THERE SHALL BE NO CROSS CONNECTION BETWEEN ANY
WASTEWATER / EFFLUENT PIPEWORK AND ANY POTABLE WATER NUMBER OF BEDROOMS 2
SUPPLY PIPEWORK
12. MINIMUM DISTANCE BETWEEN TANKS AND BUILDINGS TO BE
TAYLOR ENVIRONMENTAL
DESIGN POPULATION 3
MAINTAINED (AS/NZS 3500)
13. USE ONLY A LICENSED DRAINER THAT HAS BEEN ACCREDITED BY TOTAL DESIGN VOLUME 360 L/DAY
THE AES SYSTEM SUPPLIER. THE SUPPLIER WILL NOT PROVIDE THE
AES PIPES UNLESS THE LICENSED DRAINER HAS BEEN TRAINED AND INSPECTION POINT
DISPOSAL AREA
ACCREDITED
14. AES PIPES MUST BE INSTALLED AS PER AES INSTALLATION ∅100 uPVC DWV
2000
DISPOSAL AREA REQUIRED A = Q/DLR = 36.0 m²
INSTRUCTIONS.
15. FINAL LOCATION OF AES BEDS AND ASSOCIATED PIPE WORK CAN INSTALL AS 2x [6.6 x 2.61] = 36 m²
ONLY BE ALTERED ON SITE TO MEET THE SITE CONDITIONS AFTER
APPROVAL FROM TAYLOR ENVIRONMENTAL (AUSTRALIA) PTY LTD TYPE OF FACILITY ADVANCED ENVIRO SEPTIC
16. GRADE ALL BATTERS EVENLY AT 1 IN 5, UNLESS NOTED
OTHERWISE TREATMENT PLANT APPROVAL 15 / 2019
17. ANY SOILS ENCOUNTERED WHICH SHOW EVIDENCE OF
CONTAMINATION ARE TO BE STOCKPILED SEPARATELY.
900
TREATMENT LEVEL ADVANCED SECONDARY
CONTAMINATED SOIL SHALL BE HANDLED IN ACCORDANCE WITH ALL
WORKPLACE HEALTH & SAFETY AND ENVIRONMENTAL REGULATIONS AES CALCULATOR OUTCOMES
18. IT IS THE INSTALLERS RESPONSIBILITY TO PROVIDE ACCURATE 'AS
CONSTRUCTED' DRAWINGS TO RELEVANT LOCAL AUTHORITY AND
NUMBER OF AES PIPE ROWS 2
2610
INCUR ASSOCIATED COST
19. ALL DISTURBED AREAS TO BE RE-GRASSED AND RECTIFIED
NUMBER OF AES PIPES/ROW 2.0
1710
20. EXISTING TOPSOIL IS TO BE RETAINED AND SET ASIDE
(WINDROWED) TO PREVENT DAMAGE FROM MACHINERY AND
BUFFER CAPACITY 890 L
REDISTRIBUTED ONCE INSTALLATION IS COMPLETE
21. AT LEAST A 5 TONNE MACHINE WITH POSI-TRACK SYSTEM IS
BILL OF QUANTITIES
QBCC LICENCE NUMBER 150 556 72
REQUIRED FOR EARTHWORKS TO ELIMINATE POTENTIAL TRACK ABN NUMBER 95268308955
INDENTATIONS INTO GROUND LEVEL
22. IT IS THE RESPONSIBILITY OF THE INSTALLER TO ENGAGE THE
AES PIPES 4
DESIGNER TO UNDERTAKE INSPECTIONS DURING INSTALLATION. 300 3000 300 3000 300 Phone: +61 400 301 364
FAILURE TO DO SO WILL RESULT IN THE FORM 8 / COMMISSIONING COUPLINGS [AESC] 0 Email: [email protected]
CERTIFICATE NOT BEING ABLE TO BE COMPLETED Web: www.taylorenviro.com.au
OFFSET ADAPTOR [AESO] 8 6900
INSTALLATION
- IT IS THE INSTALLERS RESPONSIBILITY TO ENSURE THAT ALL OXYGEN DEMAND VENT [AESODV] 2
COMPONENTS COMPLY WITH THESE GUIDES UPON COMMISSIONING OF
THIS SYSTEM INSPECTION POINT BASE [AESIPB] 4 AES BED PLAN VIEW
- ALL BURIED PIPE WORK IS TO BE IDENTIFIED WITH UNDERGROUND
MARKING TAPE PLACED ABOVE THE PIPE WORK CLEAN COURSE SAND 16 m² WASTE WATER TREATMENT &
- ALONG THE BOUNDARY OF THE LAND APPLICATION AREA THERE
AES FOOTPRINT
EFFLUENT DISPOSAL SYSTEM
SHALL BE AT LEAST 2 WARNING SIGNS CLEARLY VISIBLE TO
ADVISE THAT RECYCLED WATER IS USED (EACH SIGN SHALL
COMPLY WITH AS1319 AND HAVE THE WORDING RECYCLED WATER - LENGTH WIDTH AREA
AVOID CONTACT DO NOT DRINK) AUTHORISED FOR ISSUE DATE
AES SYSTEM 13.8 m 0.9 m 12.4 m² STORMWATER DIVERSION
MAINTENANCE 14/06/2022
- SEPTIC TANKS TO BE CHECKED FOR SOLIDS BUILD UP ANNUALLY EXTENSION AREA 13.8 m 1.71 m 23.6 m² GRASS
- SEPTIC TANKS TO PUMPED OUT IF 31 FULL OF SOLIDS OR 5 YEARS INSPECTION POINT LOW VENT
150 MIN
TOTAL 13.8 m 2.61 m 36.0 m²
(WHICHEVER IS SOONER) STREET ADDRESS
- LAND APPLICATION IS IMPORTANT AND IS TO BE REGULARLY INSPECTION POINT
150 MIN
MOWED AND ANIMALS AND VEHICLES EXCLUDED 44 WILLIAMS RD, KIN KIN 4571
16% SLO
PE
APPROVED SAND
1020 APPROX
LOT & PLAN
150
3 SP127443
150 MIN
300 300 BACK FILL
750
COUNCIL
150 MIN
300
NOOSA SHIRE
1020 APPROX
∅100 LOW VENT WITH
150
150
MOSQUITO PROOF MESH NAME OF CLIENT
900 1710 300 300
COTTERILL
750
TURF ALL FINAL GRADES. NO DEEP ROOTED
ROTATE
PLANTS ON SYSTEM OR OVERFILL AREAS
2610 DESIGNER
300
150
150
ROTATE UNTIL LEVEL WITH TOP C. TAYLOR
OF OFFSET ADAPTER
TOP VIEW 100 RIP & SCARIFY 300mm DRAWN
900 1710
50-100MM 2221 ° ELBOW 100MM ∅ S&D PIPE APPLY GYPSUM 1kg/m²
LEVEL
GEOTEXTILE FIBER WRAP
2000 2610 M. MAHONY
LEVEL
RANDOMLY ORIENTATED DRAWING DETAILS
FIBER MAT
SLOPE
SECOND DWELLING DETAIL
AES PIPE
ADVANCED E-S PIPE SIDE VIEW OFFSET ADAPTERS
OFFSET ADAPTOR JOB NUMBER
ORIGINAL SOIL AES BED SECTION VIEW TE222036
APPROVED SAND
SCALE REVISION DWG #
STRAIGHT RAISED CONNECTION LOW VENT N/A A SL4
Page 13
Appendix B AES Design Calculator Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571 Taylor Environmental (Australia) Pty Ltd Page 13 of 19
Page 14
Advanced Enviro-septic Design Calculator V9.0 ©
AES The World Leader in Passive Solutions ©
Site Address 44 Williams Rd, Kin Kin 3SP127443] TOTAL2 BEDS State QLD Post Code 4571
Client Name Date of Site Visit
Designers Designers Ph Designer Lic
Chris Taylor, Director, Taylor Environmental 0400 301 364 15055672
Name Number (e.gQBCC)
Plumber Ph Plumb / Drainer
Lic Plumber TBA TBA TBA
Number Lic Number
Designers AES
Council Area Noosa Reginal 11 Date 13/6/2022
Cert Number
This Calculator is a guide only, receiving soil classification, surface water, water tables and all other site constraints addressed by the qualified designer.
System Designers site and soil calculation data entry IMPORTANT NOTES
Enter AES L/m loading rate, "30" for ADV Secondary or "38" Secondary 30 >> This design is for an ADVANCED SECONDARY system
Is this a new installation Y or N Y >> Minimun single vent size is 80mm or 2 x 50mm house vents
Number of Bedrooms 3 >> This is not used in ANY Calculation. If not known use N/A or 0.
Number of persons 5 >> A septic tank outlet filter is NOT RECOMMENDED
Daily Design Flow Allowance Litre/Person/Day 120
Number of rows required to suit site constraints 2 >> The maximum length of a single AES pipe run is 30m or 10 PIPES
Infiltration Soil Category from site/soil evaluation. CATEGORY 4 >> Catagory may require design considerations. Ref AS1547
Design Loading Rate based on site & soil evaluation DLR (mm/day) 10 >> Soil conditioning may be necessary. Ref AS1547 & Comments.
Bore log depth below system Basal area 1.5m >> Min depth 1.5m. Check water table/restrictive layer
Is this design a GRAVITY system with no outlet filter? Y or N Y >> GRAVITY. A House Vent & LOW VENT required on this system
PLEASE CHECK YOU HAVE FALL FROM TANK TO AES SYSTEM PIPES 60
COMMENTS :- " The outcome must be important to everyone. "
- Ripping of receiving surface required in clay soil structures in Cat 4,5,6. In addition refer to AS 1547. Always excavate & rip parallel to the site slope/AES pipe.
- Specialist soils advice & special design techniques will be required for clay dominated soil having dispersive or shrink/swell behaviour. Refer AS1547
- Designers need to be familar with special requirements of Local Authorities. ie - Minimum falls from Septic tank outlets to Land application areas etc
- Plumbers are reminded good construction techniques as per AS1547 are especilly important in these soil types. Refer AS1547 & AES installation Instructions
AES System Calculator Outcomes AES dimensions
AES System Extension Area
Total System load - litres / day (Q). 600 l/d
10.00 Min Length of AES pipe rows to treat loading 10.25 lm Length:(L) 12.60m 31.84m
Number of FULL AES Pipe lengths per row 4 lths Width:(W) 1.35m 3.41m
Sand
Total Capacity of AES System pipe in Litres 1696 ltr. 0.75m 0.15m
Depth :
AES Additional infiltration extension required 43.0 m2 Area m2 17.0 m^2 43.0 m^2
USE CUT LENGTHS OF PIPE IN THIS DESIGN? (ENTER Y) >>Slope percentage must be 0% & infiltration footprint must be level for this design
IF YOU WISH TO USE A TRENCH EXTENSION DESIGN OPTION ENTER "Y" Y Enter Custom Width in metre 4.65
AES INFILTRATION FOOT PRINT AREA - L = Q / ( DLR x W) Length Width Minimum AES foot print required
The length & width of excavation required for this design is >> 12.90m x 4.65m = 60.0 m2 total
AES pipes are best centered in the trench parallel to the site slope
Code AES System Bill of Materials. Chankar Environmental Use Only
AES-PIPE AES 3 metre Lengths required 8 lths
AESC AES Couplings required 4 ea 24.9
AESO AES Offset adaptors 8 ea
AESODV AES Oxygen demand vent 2 ea “Nature's Wastewater Solutions”
AES-IPB AES 100mm Inspection point base 4 ea
TD Kit 4 4 Hole Distribution Box Kit 1 ea
TD Kit 7 7 Hole Distribution Box Kit ea Digitally signed by Steve Dennis
VS43-4 Sweet Air Filter VS43-4 ea DN: cn=Steve Dennis, o=Chankar
AES DESO Double Offset Adaptors ea
Enviromental, ou=Design
Review, email=steve@enviro-
TOTAL SYSTEM SAND REQUIRED (Estimate Only) 28 m3
septic.com.au, c=US
Please email your AES Calculator (EXCEL FORMAT), Site Layout & AES Design to Date: 2022.06.14 15:23:17 +10'00'
[email protected] [email protected]
> The AES Calculator is a design aid to allow checking of the AES components, configuration and is a guide only. Site and soil conditions referencing AS1547 are
calculated and designed by a Qualified Wastewater Designer.
> Chankar Environmental accepts no responsibility for the soil evaluation, loading calculations or DLR entered by the designer for this calculator.
> AES pipes can be cut to length on site. They are supplied in 3 meter lengths only.
> AES ONLY supply AES components as detailed in the Bill of Materials.
> SEPTIC Tank & other components including SAND will need to be sourced from other suppliers. Refer to our WEBSITE www.enviro-septic.com.au OR 07 5474 4055
AES-Design-V9.0-Calculator © Copy Right - Chankar Environmental Pty Ltd 20/1/2022
Page 15
Advanced Enviro-septic Design Calculator V9.0 ©
AES The World Leader in Passive Solutions ©
Site Address 44 Williams Rd, Kin Kin [3SP127443] - SECOND DWELLING TOTAL 2 BEDS State QLD Post Code 4571
Client Name COTTERILL Date of Site Visit
Designers Designers Ph Designer Lic
Chris Taylor, Director, Taylor Environmental 0400 301 364 15055672
Name Number (e.gQBCC)
Plumber Ph Plumb / Drainer
Lic Plumber TBA TBA TBA
Number Lic Number
Designers AES
Council Area Noosa Reginal 11 Date 13/6/2022
Cert Number
This Calculator is a guide only, receiving soil classification, surface water, water tables and all other site constraints addressed by the qualified designer.
System Designers site and soil calculation data entry IMPORTANT NOTES
Enter AES L/m loading rate, "30" for ADV Secondary or "38" Secondary 30 >> This design is for an ADVANCED SECONDARY system
Is this a new installation Y or N Y >> Minimun single vent size is 80mm or 2 x 50mm house vents
Number of Bedrooms 2 >> This is not used in ANY Calculation. If not known use N/A or 0.
Number of persons 3 >> A septic tank outlet filter is NOT RECOMMENDED
Daily Design Flow Allowance Litre/Person/Day 120
Number of rows required to suit site constraints 2 >> The maximum length of a single AES pipe run is 30m or 10 PIPES
Infiltration Soil Category from site/soil evaluation. CATEGORY 5 >> Catagory may require design considerations. Ref AS1547
Design Loading Rate based on site & soil evaluation DLR (mm/day) 10 >> Soil conditioning may be necessary. Ref AS1547 & Comments.
Bore log depth below system Basal area 1.5m >> Min depth 1.5m. Check water table/restrictive layer
Is this design a GRAVITY system with no outlet filter? Y or N Y >> GRAVITY. A House Vent & LOW VENT required on this system
PLEASE CHECK YOU HAVE FALL FROM TANK TO AES SYSTEM PIPES 36
COMMENTS :- " The outcome must be important to everyone. "
- Ripping of receiving surface required in clay soil structures in Cat 4,5,6. In addition refer to AS 1547. Always excavate & rip parallel to the site slope/AES pipe.
- Specialist soils advice & special design techniques will be required for clay dominated soil having dispersive or shrink/swell behaviour. Refer AS1547
- Designers need to be familar with special requirements of Local Authorities. ie - Minimum falls from Septic tank outlets to Land application areas etc
- Plumbers are reminded good construction techniques as per AS1547 are especilly important in these soil types. Refer AS1547 & AES installation Instructions
AES System Calculator Outcomes AES dimensions
AES System Extension Area
Total System load - litres / day (Q). 360 l/d
6.00 Min Length of AES pipe rows to treat loading 6.25 lm Length:(L) 6.60m 20.07m
Number of FULL AES Pipe lengths per row 2 lths Width:(W) 1.35m 4.10m
Sand
Total Capacity of AES System pipe in Litres 848 ltr. 0.75m 0.15m
Depth :
AES Additional infiltration extension required 27.1 m2 Area m2 8.9 m^2 27.1 m^2
USE CUT LENGTHS OF PIPE IN THIS DESIGN? (ENTER Y) >>Slope percentage must be 0% & infiltration footprint must be level for this design
IF YOU WISH TO USE A TRENCH EXTENSION DESIGN OPTION ENTER "Y" Y Enter Custom Width in metre 5.22
AES INFILTRATION FOOT PRINT AREA - L = Q / ( DLR x W) Length Width Minimum AES foot print required
The length & width of excavation required for this design is >> 6.90m x 5.22m = 36.0 m2 total
AES pipes are best centered in the trench parallel to the site slope
Code AES System Bill of Materials. Chankar Environmental Use Only
AES-PIPE AES 3 metre Lengths required 4 lths
AESC AES Couplings required 0 ea 12.9
AESO AES Offset adaptors 8 ea
AESODV AES Oxygen demand vent 2 ea “Nature's Wastewater Solutions”
AES-IPB AES 100mm Inspection point base 4 ea
TD Kit 4 4 Hole Distribution Box Kit 1 ea
TD Kit 7 7 Hole Distribution Box Kit ea Digitally signed by Steve Dennis
VS43-4 Sweet Air Filter VS43-4 ea DN: cn=Steve Dennis, o=Chankar
AES DESO Double Offset Adaptors ea
Enviromental, ou=Design
Review, email=steve@enviro-
TOTAL SYSTEM SAND REQUIRED (Estimate Only) 16 m3
septic.com.au, c=US
Please email your AES Calculator (EXCEL FORMAT), Site Layout & AES Design to Date: 2022.06.14 15:22:56 +10'00'
[email protected] [email protected]
> The AES Calculator is a design aid to allow checking of the AES components, configuration and is a guide only. Site and soil conditions referencing AS1547 are
calculated and designed by a Qualified Wastewater Designer.
> Chankar Environmental accepts no responsibility for the soil evaluation, loading calculations or DLR entered by the designer for this calculator.
> AES pipes can be cut to length on site. They are supplied in 3 meter lengths only.
> AES ONLY supply AES components as detailed in the Bill of Materials.
> SEPTIC Tank & other components including SAND will need to be sourced from other suppliers. Refer to our WEBSITE www.enviro-septic.com.au OR 07 5474 4055
AES-Design-V9.0-Calculator © Copy Right - Chankar Environmental Pty Ltd 20/1/2022
Page 16
Appendix C Treatment Plant Approval Site and Soil Evaluation 44 Williams Road, Kin Kin QLD 4571 Taylor Environmental (Australia) Pty Ltd Page 16 of 19
Page 17
TREATMENT PLANT APPROVAL 15/2019
Plumbing and Drainage Act 2018
Amendment No.1
Approval
1. The Advanced Enviro-septic (AES) (“the System”) described in the Specifications and
Drawings in the attached Schedule and manufactured by Presby Environmental Inc.
Whitefield, New Hampshire (“the manufacturer”) and supplied by Chankar
Environmental Pty Ltd (ACN 148 175 455) (“the supplier”) has been assessed in
accordance with the Queensland Plumbing and Wastewater Code (QPW Code) dated
15th January 2013.
2. The supplier applied to the Chief Executive on 12 February 2020 for an amendment to
the system as specified below.
3. Approval is granted for previous Condition 10, to be amended to state: ‘A septic tank
conforming to AS/NZS1546.1 and sized in accordance with AS/NZS1547 for the
influent hydraulic load from the dwelling is a component of the system’.
4. Approval is granted for an advanced secondary quality wastewater treatment system,
subject to compliance by the manufacturer/supplier with the requirements of the
Plumbing and Drainage Act 2018 and the conditions of approval detailed below.
5. This approval, the conditions of approval and the Schedule comprise the entire
Treatment Plant Approval document.
6. Any modification by the manufacturer/supplier to the design, drawings or
specifications scheduled to this approval must be approved by the Chief Executive.
Conditions of approval
7. The manufacture, installation, operation, service and maintenance of the systems
must be inconformity with the conditions of this Treatment Plant Approval.
8. The advanced secondary quality wastewater treatment system, which is an example
of the approved systems, may only be used on premises that generate per day:
a) a maximum hydraulic loading of 90L / 3 metre length of AES piping system
b) a maximum organic loading of 240mg/L BOD5
c) a maximum total suspended solids of 300mg/L.
9. The system must continue to meet the requirements of advanced secondary quality
wastewater treatment system, producing the following effluent quality —
a) 90% of the samples taken must have a BOD5 less than or equal to 10 g/m³
with no sample greater than 20 g/m³.
b) 90% of the samples taken must have total suspended solids less than or equal
to 10g/m³ with no sample greater than 20g/m³.
10. Each system must be serviced in accordance with the details supplied in the owner’s
operation and maintenance manual.
Treatment Plant Approval
Approved by: Lindsay Walker
Delegated Authority
Department of Housing & Public Works
Page 18
11. The system design is based upon secondary quality effluent design loading rate as
defined in AS/NZ1547 using the AES Design Calculator prepared by a qualified
designer. System designs must be verified and signed by the supplier before being
submitted to the Local Government.
12. A septic tank conforming to AS/NZ 1546.1 and sized in accordance with AS/NZ 1547
for the influent hydraulic load from the dwelling is a component of the system. Waste
from the septic tank is to be diverted to the AES piping system prior to the system
sand and basal area. The septic tank that feeds into the system must be regularly
monitored and maintained (including de-sludging) in accordance with AS/NZ 1547 to
ensure optimum operation of the system.
13. When granting a compliance permit, the local government must satisfy itself that the
designer’s choice of the system configuration is optimal for the proposed use and site
conditions and that the effluent can be retained within the land application area.
14. Each application for a compliance permit to install a system must also be accompanied
by a copy of a completed Advanced Enviro-Septic Design Calculator Report endorsed
by the supplier, showing the footprint/basal area of the proposed system and number
of pipe modules for the site.
15. An inspection/sampling point must be installed permanently in the sand immediately
below the half-way point of the AES piping system. Where a system is installed in a
sloping basal area an additional inspection/sampling point must be installed at the
lowest point of the system extension.
16. Routine maintenance of the system at set intervals, other than septic tank sludge
levels, is not stipulated by the manufacturer/supplier. However, routine monitoring may
be required by the Local Government. In the event of failure of the system’s land
application area an AES authorised person may need to follow the rejuvenation
procedures set out in the manufacturer/supplier’s Design and Installation Manual.
17. Where a system installed at a site, has been found not to operate satisfactorily during
its service life, and as a result requires modification to achieve the required
performance requirements, in particular, water quality limits, the installed system is to
be modified accordingly. Any modifications including any of the supplier’s rejuvenation
procedure outcomes must be recorded on the service report.
18. Permitted use of the effluent is for sub-surface absorption only.
19. Each system must be supplied with —
(a) a copy of this Treatment Plant Approval document;
(b) details of the system;
(c) instructions for authorised persons for its installation;
(d) a copy of the owner’s manual to be given to the owner at the time of installation;
and
(e) detailed instructions for authorised service personal for its operation and
maintenance.
Treatment Plant Approval
Approved by: Lindsay Walker
Delegated Authority
Department of Housing & Public Works
Page 19
20. At each anniversary of the Treatment Plant Approval date, the supplier must submit to
the Chief Executive a list of all systems installed in Queensland during the previous 12
months. Where the Chief Executive is notified of any system failures the Chief
Executive may randomly select a number of installed systems for audit. The Chief
Executive will notify the supplier’s nominated NATA accredited laboratory which
systems are to be audited for BOD5 and TSS. The sampling and testing of the
selected systems, if required, is to be done at the supplier’s expense. The following
results must be reported to the Chief Executive;
a) Address of premises;
b) Date inspected and sampled;
c) Sample identification number;
d) BOD5 for influent and effluent; and
e) TSS for influent and effluent.
21. The Chief Executive may, by written notice, cancel this approval if the
manufacturer/supplier fails —
a) to comply with one or more of the conditions of approval; or
b) within 30 days, to remedy a breach, for which a written notice been given by the
Chief Executive.
22. This approval may only be assigned with the prior written consent of the Chief
Executive.
23. This approval expires on 1 January 2024 unless cancelled earlier in accordance with
paragraph 21 above.
Lindsay Walker
Director Level 7,
63 George Street Brisbane
Plumbing, Drainage and Special Projects
Building Legislation and Policy GPO Box 2457, Brisbane Qld 4001
Date approved: 03 March 2020 Telephone +61 7 3008 2557
Facsimile +61 7 3237 1248
Website www.hpw.qld.gov.au
ABN 61 331 950 314
Treatment Plant Approval
Approved by: Lindsay Walker
Delegated Authority
Department of Housing & Public Works